1
0
mirror of https://github.com/django/django.git synced 2025-05-19 05:16:27 +00:00
django/django/utils/hashable.py
aspalding 217f82d713 Refs #29838 -- Fixed make_hashable() for values that have lists or dicts nested in tuples.
And for non-hashable values that are iterable, e.g. sets.
2018-10-17 11:17:50 -04:00

20 lines
541 B
Python

from django.utils.itercompat import is_iterable
def make_hashable(value):
if isinstance(value, dict):
return tuple([
(key, make_hashable(nested_value))
for key, nested_value in value.items()
])
# Try hash to avoid converting a hashable iterable (e.g. string, frozenset)
# to a tuple.
try:
hash(value)
except TypeError:
if is_iterable(value):
return tuple(map(make_hashable, value))
# Non-hashable, non-iterable.
raise
return value